Theres too much in this to worry about... Its an 07 reg (why is it being advertised now?)
No logbook (v5)... surely they could easily apply for the logbook themselves (why can't/won't they?)
Unrecorded damage, fair enough getting things fixed without going through insurance is understandable but the amount of damage (that could be) on that would write it off and potentially unsafe to fix.
Light and easy to repair damage, why not repair themselves if its that light and easy?

Looks to me like a can of worms